15-07-2019
Mathematics

contestada

18-r=12
[tex]18 - r = 12[/tex]

Respuesta :

20-07-2019

Answer:

r = 6

Step-by-step explanation:

18 - r = 12 subtract 18 from both sides

18 - 18 - r = 12 - 18

-r = -6 change the signs

r = 6

Check

18 - 6 = 12 CORRECT

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